Replace non-heated with heated Passenger door mirror

X300
1

Hey guys,
I cleaned my non-heated passenger door mirror with an abrasive sponge, thinking it was glass. It’s plastic and now the sponges’ scratches show a flare in night time.
So I purchased a replacement mirror but it’s a heated one that has 2 wires attached to the glass/plastic.
There are 2 wires present in the mirror housing that had not been connected to my old unheated mirror, just sitting there dormant.

My question now:
can I connect the new heated mirror to those 2 wires, and will it work, or will that mess up the electric somewhere?

thanks!!!

1995 XJR, 150K miles

2

To my mind, the simple expedient of hooking up a multimeter to the wires in question will answer your question :slight_smile:

3

I never used a multimeter before.
So if the multimeter detects a voltage between the two wires that sit currently unused in the mirror housing, that means I can hook them up to the new heated mirror glass and won’t have electrical issues?

4

Yes do connect them up. It won’t do damage.

when you turn the rear window heater on it should in theory heat the mirror, (if relay fitted)